main.c

wince下著名的视频播放器源码

				break;
			case '0':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = false;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 0;
				break;
			case '1':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = true;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 0;
				break;
			case '2':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = 0;
				option_values.max_residual_partition_order = 3;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 0;
				break;
			case '3':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = false;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 6;
				break;
			case '4':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = true;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 8;
				break;
			case '5':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 8;
				break;
			case '6':
				option_values.do_exhaustive_model_search = false;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = 0;
				option_values.max_residual_partition_order = 4;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 8;
				break;
			case '7':
				option_values.do_exhaustive_model_search = true;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = 0;
				option_values.max_residual_partition_order = 6;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 8;
				break;
			case '8':
				option_values.do_exhaustive_model_search = true;
				option_values.do_escape_coding = false;
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				option_values.qlp_coeff_precision = 0;
				option_values.min_residual_partition_order = 0;
				option_values.max_residual_partition_order = 6;
				option_values.rice_parameter_search_dist = 0;
				option_values.max_lpc_order = 12;
				break;
			case '9':
				return usage_error("ERROR: compression level '9' is reserved\n");
			case 'V':
				option_values.verify = true;
				break;
			case 'S':
				FLAC__ASSERT(0 != option_argument);
				if(option_values.num_requested_seek_points < 0)
					option_values.num_requested_seek_points = 0;
				option_values.num_requested_seek_points++;
				if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
					return usage_error("ERROR: too many seekpoints requested\n");
				}
				else {
					strcat(option_values.requested_seek_points, option_argument);
					strcat(option_values.requested_seek_points, ";");
				}
				break;
			case 'P':
				FLAC__ASSERT(0 != option_argument);
				option_values.padding = atoi(option_argument);
				if(option_values.padding < 0)
					return usage_error("ERROR: argument to -P must be >= 0\n");
				break;
			case 'b':
				FLAC__ASSERT(0 != option_argument);
				option_values.blocksize = atoi(option_argument);
				break;
			case 'e':
				option_values.do_exhaustive_model_search = true;
				break;
			case 'E':
				option_values.do_escape_coding = true;
				break;
			case 'l':
				FLAC__ASSERT(0 != option_argument);
				option_values.max_lpc_order = atoi(option_argument);
				break;
			case 'm':
				option_values.do_mid_side = true;
				option_values.loose_mid_side = false;
				break;
			case 'M':
				option_values.loose_mid_side = option_values.do_mid_side = true;
				break;
			case 'p':
				option_values.do_qlp_coeff_prec_search = true;
				break;
			case 'q':
				FLAC__ASSERT(0 != option_argument);
				option_values.qlp_coeff_precision = atoi(option_argument);
				break;
			case 'r':
				FLAC__ASSERT(0 != option_argument);
				p = strchr(option_argument, ',');
				if(0 == p) {
					option_values.min_residual_partition_order = 0;
					option_values.max_residual_partition_order = atoi(option_argument);
				}
				else {
					option_values.min_residual_partition_order = atoi(option_argument);
					option_values.max_residual_partition_order = atoi(++p);
				}
				break;
			case 'R':
				FLAC__ASSERT(0 != option_argument);
				option_values.rice_parameter_search_dist = atoi(option_argument);
				break;
			default:
				FLAC__ASSERT(0);
		}
	}

	return 0;
}

void free_options()
{
	unsigned i;
	if(0 != option_values.filenames) {
		for(i = 0; i < option_values.num_files; i++) {
			if(0 != option_values.filenames[i])
				free(option_values.filenames[i]);
		}
		free(option_values.filenames);
	}
	if(0 != option_values.vorbis_comment)
		FLAC__metadata_object_delete(option_values.vorbis_comment);
}

int usage_error(const char *message, ...)
{
	if(flac__utils_verbosity_ >= 1) {
		va_list args;

		FLAC__ASSERT(0 != message);

		va_start(args, message);

		(void) vfprintf(stderr, message, args);

		va_end(args);

		printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
	}

	return 1;
}

void show_version()
{
	printf("flac %s\n", FLAC__VERSION_STRING);
}

static void usage_header()
{
	printf("===============================================================================\n");
	printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
	printf("Copyright (C) 2000,2001,2002,2003,2004,2005  Josh Coalson\n");
	printf("\n");
	printf("This program is free software; you can redistribute it and/or\n");
	printf("modify it under the terms of the GNU General Public License\n");
	printf("as published by the Free Software Foundation; either version 2\n");
	printf("of the License, or (at your option) any later version.\n");
	printf("\n");
	printf("This program is distributed in the hope that it will be useful,\n");
	printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
	printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
	printf("GNU General Public License for more details.\n");
	printf("\n");
	printf("You should have received a copy of the GNU General Public License\n");
	printf("along with this program; if not, write to the Free Software\n");
	printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
	printf("===============================================================================\n");
}

static void usage_summary()
{
	printf("Usage:\n");
	printf("\n");
	printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
	printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
	printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
	printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
	printf("\n");
}

void short_usage()
{
	usage_header();
	printf("\n");
	printf("This is the short help; for all options use 'flac --help'; for even more\n");
	printf("instructions use 'flac --explain'\n");
	printf("\n");
	printf("To encode:\n");
	printf("  flac [-#] [INPUTFILE [...]]\n");
	printf("\n");
	printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
	printf("\n");
	printf("To decode:\n");
	printf("  flac -d [INPUTFILE [...]]\n");
	printf("\n");
	printf("To test:\n");
	printf("  flac -t [INPUTFILE [...]]\n");
}

void show_help()
{
	usage_header();
	usage_summary();
	printf("general options:\n");
	printf("  -v, --version                Show the flac version number\n");
	printf("  -h, --help                   Show this screen\n");
	printf("  -H, --explain                Show detailed explanation of usage and options\n");
	printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
	printf("  -t, --test                   Same as -d except no decoded file is written\n");
	printf("  -a, --analyze                Same as -d except an analysis file is written\n");
	printf("  -c, --stdout                 Write output to stdout\n");
	printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
	printf("      --totally-silent         Do not print anything, including errors\n");
	printf("  -f, --force                  Force overwriting of output files\n");
	printf("  -o, --output-name=FILENAME   Force the output file name\n");
	printf("      --output-prefix=STRING   Prepend STRING to output names\n");
	printf("      --delete-input-file      Deletes after a successful encode/decode\n");
	printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
	printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
#ifdef FLAC__HAS_OGG
	printf("      --ogg                    Use Ogg as transport layer\n");
	printf("      --serial-number          Serial number to use for the FLAC stream\n");
#endif
	printf("analysis options:\n");
	printf("      --residual-text          Include residual signal in text output\n");
	printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
	printf("decoding options:\n");
	printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
	printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
	printf("encoding options:\n");
	printf("  -V, --verify                 Verify a correct encoding\n");
	printf("      --lax                    Allow encoder to generate non-Subset files\n");
	printf("      --sector-align           Align multiple files on sector boundaries\n");
	printf("      --replay-gain            Calculate ReplayGain & store in Vorbis comments\n");